A ground leveling tool

Abstract

This invention discloses a ground leveling tool, relating to the technical field of building construction. Its key technical features are: a base assembly with a support column slidably inserted between it and the support column; a leveling plate at the bottom of the support column; and a horizontal positioning plate at the top of the support column. A bubble level is located at the center of the top of the horizontal positioning plate. The base assembly also has at least two support rods, which are inserted through the base assembly. An adjustment device is located inside the base assembly. The advantages of this invention are: by using the leveling plate and horizontal positioning plate as reference surfaces to determine the ground elevation, and by using the bubble level to adjust the leveling tool's horizontality, precise control of ground flatness can be achieved. This concrete ground leveling tool is simple to manufacture, easy to move, and can be placed in any location as needed without affecting the passage of construction personnel and vehicles. It eliminates the need for making mortar spots and reduces human error.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, specifically to a ground leveling tool. Background Technology

[0002] With the widespread adoption of intelligent robots in logistics warehousing and production processes, the requirements for ground flatness are becoming increasingly stringent.

[0003] When pouring large-area concrete floors, the traditional method to ensure flatness is to prepare mortar spots on the base layer before pouring. During pouring, the top surface of the mortar spots is used as a reference surface, and a straightedge is used to level the surface. This method has several drawbacks: First, the mortar spots don't adhere firmly to the base layer, making them easily damaged by personnel and vehicles during concrete pouring. Second, the concrete easily covers the mortar spots, making them difficult to identify and rendering them ineffective. Third, after the concrete is poured, it's impossible to perform secondary leveling to address uneven slump and create a highly flat floor.

[0004] With technological advancements, large-scale laser screed machines, integrating scraping and vibration, have replaced manual labor, improving construction efficiency while ensuring ground flatness. However, the widespread application of large-scale laser screed machines is limited by several factors: firstly, the equipment investment can reach tens or even hundreds of thousands of yuan; secondly, it requires highly skilled operators; and thirdly, it cannot be used in environments with complex pipelines.

[0005] The existing technical solutions mentioned above have the following drawbacks: during the concrete paving process, it is impossible to accurately control the concrete elevation; uneven concrete paving results in repeated additions and subtractions of materials in the later stages; continuous large-area concrete pouring cannot be achieved; and formwork is required for each section. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a ground leveling tool with the following advantages: by using a leveling plate and a horizontal positioning plate as reference surfaces, the ground elevation is determined; the levelness of the leveling tool is adjusted using a bubble level, thereby achieving precise control of the ground flatness. This concrete ground leveling tool is simple to manufacture, easy to move, and can be placed in any location as needed without affecting the passage of construction personnel and vehicles. It also eliminates the need for making mortar spots and reduces human error.

[0007] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0008] A ground leveling tool includes a base assembly, on which a support column is slidably inserted. A leveling plate is provided at the bottom of the support column, and a horizontal positioning plate is provided at the top of the support column. A bubble level is provided at the top center of the horizontal positioning plate. The base assembly also has at least two support rods, which are inserted through the base assembly. An adjustment device is provided inside the base assembly.

[0009] In a preferred embodiment, the present invention may be further configured such that a hollow sleeve is rotatably disposed on the base assembly, the hollow sleeve being sleeved on the support column and the two being threadedly connected.

[0010] In a preferred embodiment, the present invention may be further configured such that: the base assembly includes a first substrate and a second substrate, the upper half of the support rod is threadedly connected to the first substrate, and the lower half of the support rod is slidably disposed with respect to the second substrate.

[0011] In a preferred embodiment, the present invention can be further configured as follows: the adjusting device includes a motor, the output end of the motor is connected to a first gear, the two sides of the first gear are meshed with second gears, a first transmission rod is provided on the second gear, a third gear is provided at the end of the first transmission rod, the third gear meshes with a fourth gear, the fourth gear is fixedly sleeved on the second transmission rod, a fifth gear is connected to the second transmission rod, and a hollow gear is also provided, the hollow gear is disposed in the first base plate, the hollow gear is sleeved on the upper half of the support rod and the two are threadedly connected, and the fifth gear and the hollow gear are connected in a driving connection.

[0012] In a preferred embodiment, the present invention can be further configured as follows: a through hole is provided at the center of the fifth gear, a plurality of grooves are uniformly provided on the inner wall of the through hole, a telescopic rod is provided on the outer wall of the second transmission rod with the same number and corresponding position as the grooves, a ball is movably provided at the end of the telescopic rod, the ball is located at the corresponding groove, and a return spring is sleeved on the telescopic rod.

[0013] In a preferred embodiment, the present invention can be further configured such that: the lower half of the support rod has grooves on both sides, and a slider is slidably disposed on the grooves, the slider being disposed within the second substrate.

[0014] In a preferred embodiment, the present invention may be further configured such that the support rod is telescopic and the end of the support rod away from the horizontal positioning plate is provided with a pointed cone.

[0015] In summary, the present invention has at least one of the following beneficial technical effects:

[0016] 1. This invention uses a leveling plate and a horizontal positioning plate as reference surfaces to determine the ground elevation, and uses a bubble level to adjust the leveling tool's levelness, thereby achieving precise control of the ground flatness. This concrete floor leveling tool is simple to manufacture, easy to move, and can be placed in any position as needed without affecting the passage of construction personnel and vehicles. It eliminates the need for making mortar spots and reduces human error.

[0017] 2. This invention can accurately control the amount of concrete spread in each area during the concrete pouring process, and can also precisely control the surface flatness after the concrete is poured, which greatly improves the quality of the project.

[0018] 3. This invention can be used alone or in conjunction with a laser leveling machine, which reduces the construction intensity, improves the construction efficiency, fills the gap in the field of leveling construction of poured concrete floors in China, and has obvious economic and social benefits.

[0019] 4. The present invention inserts multiple support rods on the base assembly. When placed on an uneven ground, the insertion height of each support rod is adjusted to make the leveling and positioning plate horizontal.

[0020] 5. This invention, driven by a telescopic rod and a return spring, allows for the descent of multiple support rods when placed on uneven ground. When the first support rod touches the ground while the others do not, the motor continues to rotate, but that support rod stops descending. The other support rods that are not touching the ground continue to descend. When all support rods touch the ground, the motor can no longer drive the other support rods to descend further. This eliminates the need for manual adjustment of the height of each support rod while ensuring the horizontal positioning plate remains level. The motor can drive different support rods to descend to the appropriate insertion height, which is very convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the first substrate of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the second substrate of the present invention;

[0024] Figure 4 This is a sectional view of the fifth gear;

[0025] Figure 5 yes Figure 4 Enlarged image.

[0026] Reference numerals: 1. First base plate; 11. Hollow gear; 12. First gear; 13. Second gear; 14. First transmission rod; 15. Third gear; 16. Fourth gear; 17. Second transmission rod; 18. Fifth gear; 2. Second base plate; 21. Slider; 3. Support column; 31. Finding plate; 32. Horizontal positioning plate; 33. Bubble level; 4. Support rod; 41. Cone; 42. Slide groove; 5. Hollow sleeve; 6. Motor; 71. Through hole; 72. Groove; 73. Telescopic rod; 74. Ball; 75. Return spring. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, this invention discloses a ground leveling tool, comprising a base assembly. The base assembly includes a first base plate 1 and a second base plate 2, with support columns 3 inserted into both base plates 1 and 2. A hollow sleeve 5 is provided at the upper end of the first base plate 1, and the two are rotatably connected. The hollow sleeve 5 is threadedly connected to the support column 3. An adjustment device is provided inside the first base plate 1.

[0029] The upper half of the support column 3 has a threaded groove that matches the hollow sleeve 5, and its lower half is slidably connected to the second base plate 2. That is, the upper half of the support column 3 has a threaded groove, and the lower half is smoothly disposed. In the art, the sliding connection structure between the support column 3 and the second base plate 2 is an existing structure, namely a threaded connection, which will not be described in detail here. In this embodiment, the connection relationship between the support column 3 and the second base plate 2 is the same as the connection relationship between the support rod 4 and the second base plate 2.

[0030] The first substrate 1 is also provided with at least two support rods 4, and four are used in this embodiment. That is, support rods 4 are inserted through the four right angles of the first substrate 1, and the support rods 4 are also inserted through the second substrate 2. The support rods 4 are telescopic to facilitate height adjustment. The telescopic method can refer to existing structures, such as those used in floor fans and display panels. A pointed cone 41 is provided at the end of the support rod 4 away from the horizontal positioning plate 32.

[0031] A horizontal positioning plate 32 is provided at the top of the support column 3, and a bubble level 33 is provided at the center of the top surface of the horizontal positioning plate 32. A leveling plate 31 is provided at the bottom of the support column 3, and the leveling plate 31 is always parallel to the horizontal positioning plate 32. An adjustment device for driving the four support rods 4 to slide up and down is provided on the first base plate 1.

[0032] During use, the operator adjusts the angle of the device to keep the horizontal positioning plate 32 level (by observing the bubble level 33 at the center of the horizontal positioning plate 32). Then, the height of each support rod 4 is adjusted by the adjustment device so that each support rod 4 is inserted into the ground, thus ensuring that the horizontal positioning plate 32 remains level while the device is fixed in place. Next, the height of the leveling plate 31 is adjusted by rotating the hollow sleeve 5 to match the leveling elevation. Then, concrete is poured and leveled to the same height as the horizontal positioning plate 32 to ensure uniform ground flatness. After construction is completed, the device is removed.

[0033] The adjusting device includes a motor 6, which is positioned outside the first base plate 1. A first gear 12 is located at the output end of the motor 6. The first gear 12 is located inside the first base plate 1. Second gears 13 mesh with both sides of the first gear 12. A first transmission rod 14 is mounted on the second gear 13. A third gear 15 is mounted at the end of the first transmission rod 14. The third gear 15 meshes with a fourth gear 16. The fourth gear 16 is fixedly mounted on a second transmission rod 17. Fifth gears 18 are mounted at both ends of the second transmission rod 17. The fifth gear 18 meshes with a hollow gear 11. A threaded groove is formed in the upper half of the support rod 4, and the hollow gear 11 is threaded and rotatably mounted on the upper half of the support rod 4. All the gears mentioned here are part of the adjusting device.

[0034] The lower half of the support rod 4 has grooves 42 on both sides, and a slider 21 is slidably mounted on the grooves 42. The slider 21 is located inside the second base plate 2.

[0035] When the motor 6 is working, it drives the four hollow gears 11 to rotate, causing the support rod 4 to move up and down.

[0036] A through hole 71 is provided at the center of the fifth gear 18. Multiple grooves 72 are evenly distributed on the inner wall of the through hole 71. A telescopic rod 73, corresponding in number and position to the grooves 72, is connected to the outer wall of the end of the second transmission rod 17. A ball bearing 74 is movably mounted at the end of the telescopic rod 73. The ball bearing 74 is located within the groove 72. A return spring 75 is fitted onto the telescopic rod 73.

[0037] When motor 6 is operating, the second transmission rod 17 rotates. Because the ball 74 is kept within the groove 72 by the spring force of the return spring 75, the second transmission rod 17 drives the fifth gear 18 to rotate, thereby driving the four support rods 4 to move downwards. When the ground is uneven, the four support rods 4 slide down at different lengths. When some support rods 4 insert into the ground and cannot slide further, motor 6 continues to drive. At this time, the ball 74 in the fifth gear 18 corresponding to the support rod 4 will overcome the return spring 75, leave the groove 72, and enter the next groove 72. This avoids motion interference caused by some support rods 4 being unable to slide further while motor 6 continues to drive. The support rod 4 and motor 6 are thus disengaged in a certain sense. Motor 6 continues to operate, causing the other support rods 4 not inserted into the ground to continue sliding down (when a support rod 4 inserts into the ground, it will disengage from motor 6) until all support rods 4 are inserted into the ground, at which point motor 6 can be stopped. When it is necessary to slide the support rod 4 upwards, the motor 6 only needs to reverse to drive all four support rods 4 upwards simultaneously. There is no need to reconnect the support rods 4 and the motor 6, which is very convenient.

[0038] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A ground leveling tool, comprising a base assembly, characterized in that, The base assembly is provided with a support column (3) and the two are slidably inserted between each other. The bottom of the support column (3) is provided with a leveling plate (31) and the top of the support column (3) is provided with a horizontal positioning plate (32). A bubble level (33) is provided at the top center of the horizontal positioning plate (32). The base assembly is also provided with at least two support rods (4). The support rods (4) are inserted through the base assembly. The base assembly is provided with an adjustment device inside. A hollow sleeve (5) is rotatably disposed on the base assembly, and the hollow sleeve (5) is sleeved on the support column (3) and the two are threadedly connected; The base assembly includes a first substrate (1) and a second substrate (2). The upper part of the support rod (4) is threadedly connected to the first substrate (1), and the lower part of the support rod (4) is slidably disposed with respect to the second substrate (2). The adjustment device includes a motor (6), the output end of the motor (6) is connected to a first gear (12), the two sides of the first gear (12) are meshed with a second gear (13), the second gear (13) is provided with a first transmission rod (14), the end of the first transmission rod (14) is provided with a third gear (15), the third gear (15) is meshed with a fourth gear (16), the fourth gear (16) is fixedly sleeved on the second transmission rod (17), the second transmission rod (17) is connected with a fifth gear (18), and a hollow gear (11) is provided. The hollow gear (11) is disposed in the first base plate (1), the hollow gear (11) is sleeved on the upper half of the support rod (4) and the two are threaded together. The fifth gear (18) and the hollow gear (11) are connected in a transmission. The fifth gear (18) has a through hole (71) at its center. The inner wall of the through hole (71) has a number of grooves (72) evenly distributed. The outer wall of the second transmission rod (17) is provided with a telescopic rod (73) that is the same number and position as the grooves (72). A ball (74) is movably disposed at the end of the telescopic rod (73). The ball (74) is located at the corresponding groove (72). A return spring (75) is sleeved on the telescopic rod (73).

2. The ground leveling tool according to claim 1, characterized in that, The lower half of the support rod (4) has grooves (42) on both sides, and a slider (21) is slidably disposed on the groove (42). The slider (21) is disposed in the second base plate (2).

3. The ground leveling tool according to claim 1, characterized in that, The support rod (4) is telescopic, and a pointed cone (41) is provided at the end of the support rod (4) away from the horizontal positioning plate (32).

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